Daikin EWWD-J Installation, Operation And Maintenance Manual page 18

1. Water inlet of the evaporator
2. Flow switch
3. Inlet water sensor
4. Water inlet pipe containing the flow switch and the water inlet temperature sensor
5. Victaulic
6. Counter pipe
7. Field water pipe circuit
8. Filter
9. Filter and cup
As not to damage the parts of the units during transport, the water inlet pipe with the flow switch and the water inlet
temperature sensor and the water outlet pipe with the outlet water temperature sensor, are not factory mounted.
Connecting the water inlet pipe containing the flow switch.
The water inlet pipe containing the flowswitch.is mounted on the side of the water inlet of the evaporator(s) and is pre-
insulated.Cut the tie wraps and fix the pipe with the supplied Victaulic
Connecting the water outlet pipe.
The water outlet pipe is mounted on the side of the water outlet of the evaporator and is pre -insulated. Cut the tie wraps
and fix the pipe(s) with the supplied Victaulic
After installation of the water inlet and outlet pipes and as a general rule for other units, it is recommended to check the
insertion depth of the water temperature sensors into the connection pipes prior the operation (see figure).
Connecting the filter
•
The filter kit supplied with the unit must be installed in front of the evaporator water inlet by means of the
supplied Victaulic
the evaporator against clogging.
•
Improper installation of the supplied filter will result in severe damage of the equipment (freezing of the
evaporator).
•
A field supplied blow down port for flushing fluid and accumulated material from inside the filter can be
connected on the filter end cap.
Connecting the counter pipes
1. Weld the supplied counter pipes to the ends of the water circuit and connect to the unit with the provided Victaulic®
couplings.
2. Drain taps must be provided at all low points of the system to permit complete drainage of the circuit during
maintenance or in case of shut down. The drain plug is provided to drain the condenser. When doing this, also
remove the air plugs (refer to the outlook diagram).
3. Air vent must be provided at all high points of the system. The vents should be located at points which are
easily accessible for servicing.
4. Shut-off valves should be provided at the unit so that normal servicing can be accomplished without draining
the system.
5. Vibration eliminators in all water piping connected to the chiller are recommended to avoid straining the piping
and transmitting vibration and noise.
D-EIMWC01008-16_03EN - 18/35
®
coupling
®
couplings to the evaporator outlet(s).
®
couplings as shown in the figure. The filter has holes of diameter 1,0 mm and secures
®
couplings to the evaporator inlet(s).